var deal_cart = function(cartId,num,dealOption){
    jQuery.ajax({

        type: 'POST',

        url: 'flow.php?' ,

        data: {
            step:'reduce',
            cartId:cartId,
            dealOption:dealOption,
            num:num

        },

        success: function (data){
            jQuery('.checkload').hide();
        },

        dataType: JSON

    });
}
